private void pf_ImageWidthUpdate()
{
Rect rctArea = new Rect(new Point(0, 0), _rxivc.RenderSize);
Rect rctImg = _rxivc.GetImageBounds();
double tmw = rctArea.Width;
double tiw = rctImg.Width;
double tssrw = tmw / tiw;
_rxsbHori.ScrollSizeRatio = tssrw;
if (tssrw < 1)
{
double tssw = tiw - tmw;
double tprw = _rxsbHori.PositionRatio;
double tix = rctArea.Left - (tssw * tprw);
_rxivc.MoveLeft(tix);
_rxivc.BoundsDrawUpdate();
}
else
{
double tmx = RxGeom.GetLeftCenter(rctArea);
_rxivc.MoveLeftCenter(tmx);
_rxivc.BoundsDrawUpdate();
}
}
public void SetScaleCenter(double tsx, double tsy)
{
if (tsx < 0.1)
{
return;
}
if (tsy < 0.1)
{
return;
}
pf_UpdateMatrix(delegate(Matrix tmtr)
{
double tysx = RxGeom.GetScaleX(tmtr);
double tysy = RxGeom.GetScaleY(tmtr);
double tnsx = RxGeom.DoubleRound(tsx);
double tnsy = RxGeom.DoubleRound(tsy);
if ((tysx != tnsx) && (tysy != tnsy))
{
double tcx = RxGeom.GetLeftCenter(_rctBounds);
double tcy = RxGeom.GetTopCenter(_rctBounds);
tmtr.Translate(-tcx, -tcy);
double tbsx = 1 / tysx;
double tbsy = 1 / tysy;
tmtr.Scale(tbsx, tbsy);
tmtr.Scale(tnsx, tnsy);
tmtr.Translate(tcx, tcy);
}
return(tmtr);
});
}
private void pf_ImageHeightUpdate()
{
Rect rctArea = new Rect(new Point(0, 0), _rxivc.RenderSize);
Rect rctImg = _rxivc.GetImageBounds();
double tmh = rctArea.Height;
double tih = rctImg.Height;
double tssrh = tmh / tih;
_rxsbVert.ScrollSizeRatio = tssrh;
if (tssrh < 1)
{
double tssh = tih - tmh;
double tprh = _rxsbVert.PositionRatio;
double tiy = rctArea.Top - (tssh * tprh);
_rxivc.MoveTop(tiy);
_rxivc.BoundsDrawUpdate();
}
else
{
double tmy = RxGeom.GetTopCenter(rctArea);
_rxivc.MoveTopCenter(tmy);
_rxivc.BoundsDrawUpdate();
}
}
public void MoveTopCenter(double tv)
{
pf_UpdateMatrix(delegate(Matrix tmtr)
{
double ttx = 0;
double tty = tv - RxGeom.GetTopCenter(_rctBounds);
tmtr.Translate(ttx, tty);
return(tmtr);
});
}
public void MoveLeft(double tv)
{
pf_UpdateMatrix(delegate(Matrix tmtr)
{
double ttx = tv - RxGeom.GetLeft(_rctBounds);
double tty = 0;
tmtr.Translate(ttx, tty);
return(tmtr);
});
}
private void pf__rxsiRotate_Callback()
{
//pf_Trace(_rxsiRotate.Value.ToString());
double tag = _rxsiRotate.Value;
_rxivc.SetRotateCenter(RxGeom.GetAngleToRadian(tag));
_rxivc.BoundsDrawUpdate();
pf_ImageHeightUpdate();
pf_ImageWidthUpdate();
}
public void MoveCenter(double tmx, double tmy)
{
pf_UpdateMatrix(delegate(Matrix tmtr)
{
double tcx = RxGeom.GetLeftCenter(_rctBounds);
double tcy = RxGeom.GetTopCenter(_rctBounds);
double ttx = tmx - tcx;
double tty = tmy - tcy;
tmtr.Translate(ttx, tty);
return(tmtr);
});
}
public void SetRotateCenter(double trd)
{
pf_UpdateMatrix(delegate(Matrix tmtr)
{
double tyrd = RxGeom.GetRadian1(tmtr);
double tnrd = RxGeom.CheckRadian(trd);
if (tnrd != tyrd)
{
double tcx = RxGeom.GetLeftCenter(_rctBounds);
double tcy = RxGeom.GetTopCenter(_rctBounds);
tmtr.Translate(-tcx, -tcy);
tmtr.Rotate(-RxGeom.GetRadianToAngle(tyrd));
tmtr.Rotate(RxGeom.GetRadianToAngle(tnrd));
tmtr.Translate(tcx, tcy);
}
return(tmtr);
});
}
public double GetTopCenter()
{
return(RxGeom.GetTopCenter(_rctBounds));
}
public double GetBottom()
{
return(RxGeom.GetBottom(_rctBounds));
}
public double GetRight()
{
return(RxGeom.GetRight(_rctBounds));
}
public double GetTop()
{
return(RxGeom.GetTop(_rctBounds));
}
public double GetHalfWidth()
{
return(RxGeom.GetHalfWidth(_rctBounds));
}
private void pf_MeasureBounds()
{
_rctBounds = RxGeom.GetVisualBounds(this, _rctImage);
_rctBounds.Inflate(10, 10);
//RxGeom.RectBounds(ref _rctBounds);
}
